Plow-fastener.



P. M. WESTBROOKS.

PLOW FASTE NER. APPLICATION FILED MAR. 87,191?- 13332, 139. Patented July 3, 1917.

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ATTORN EY Application filed March 8, 1917.

To all whom it may concern:

Be it known thatl, PLEASANT M,Wnsr- BRoo1rs,'a citizen of the United States, resid ing at Ashland, in'the county of Franklin 5 and State of Georgia, have invented new and useful Improvements in Plow-Fasteners, of which the following is a specification.

This invention relates to plow fasteners for securing the plow blade and a scraper on a plow standard of conventional construction, said fastener being intended to take the place of the heel bolt usually employed for this purpose.

One object of the invention is to produce a fastening device of simple and improved construction which will at any time permit the parts to be readily disconnected and reassembled.

A further object of the invention is to produce a simple and improved device of this class in which the usual heel bolt which is threaded to receive a nut is dispensed with,

the improved heel bolt having anotch in place of the customary threads being substituted together With a lever for tightening the bolt .and means for tightening the lever. A further object of the invention is to simplify and improve the construction and arrangement of the lever and the tightening means for the same. W

"With these 'andother ends in viewwhich will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims. In the accompanying drawing has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the claims may be resorted to when desired.

In the drawing,

Figure 1 is a side elevation showing a portion of a plow equipped with the invention.

Fig. 2 is a rear elevation of the same.

Fig. 3 is a vertical sectional view taken on the line 33 of Fig. 2.

Fig. 4: is a sectional view taken on the line 4l-4: in Fig. 1.

Fig. 5 is a sectional detail view taken on the line 5-5 in Fig. 1.

Specification of Letters Patent.

PLOW-FASTENER.

Patented July 3, 1917. Serial No. 153,379.

Fig. 6 is a view similar to Fig. 4 and showing a slightly modified construction.

15'designates a plow standardof the usual bifurcated type, said standard being pivotally mounted at 16 on the beam 2. portion of which is shown at 17 18 designates a plow blade which is mounted on the front face of the standard 19 and a scraper blade which is mounted on the rear face thereof,

said plow and scraper blades being apertured for the passage of the heel bolt 20, the

latter having a head 21 that abuts on the plow blade 18. The heel bolt is provided with oppositely disposed notches 22 adjacent to the end thereof which protrudes through the scraper blade 19, the parts being so pro- 'portioned that when assembled, the notched portion of the heel bolt will barely protrude beyond the rearward face of the scraper blade.

23 designates a lever member the lower end of which is bifurcated to form prongs v 24c engaging, the notches 22 ofthe heel bolt,

the latter being straddled by the bifurcated end of the lever. The latter is provided adj'acent to the bifurcated portion that en The bolt 27 extends rearwardly between the prongs 26 of the lever andit is provided 'with a tubular washer 3O fitted between the prongs 26 and having a flange 31 which directly engages the rearward faces of the prongs, the nut 32 being tightened upon the tubular washer. When the parts are assembled, by thus tightening the nut the lever will be rocked on the angular corner 33 at the forward end of the ofiset 25, said corner constituting a, fulcrum that abuts upon and engages the scraper blade 19, jamming the latter forcibly in engagement with the rearward face of the standard. At the same time the prongs 24 engaging the notches of the heel bolt will move the latter forcibly in a rearward direction, causing the head 25 to force the blade 18 into intermediate contact with the forward face of the standard. The

nut 32 may be tightened to produce any v engage the notched heel bolt and prongs atrequisite degree of tension to maintain the parts securely in assembled relation.

It will be observed that the tubular sleeve or washer 30 serves to protect the threads of the bolt from being stripped or otherwise injured by the prongs 26 of the lever. Under the modified construction illustrated in Fig. 5 of the drawing the said tubular washer is formed integral with the nut, which is here designated by 32, the tubular sleeve and the flange thereof being designated respectively by 30 and 31. By this construction the danger of parts being lost or misplaced is materially lessened.

It will be seen that by the improved device the plow and scraper blades may be quickly and securely assembled with or detached from the standard. The bolt 27 being pivotally connected with the standard it is not necessary at any time to entirely remove the nut therefrom, since the bolt may be swung upward between the prongs 26 of the lever member 23.

Having thus described the invention, what is claimed asnew is:

1. A plow fastener comprising in combination with a .U-shaped standard and an eye bolt pivotally connected therewith, a heel bolt having a head at one end and notches adjacent to the otheroend, a lever member having prongs at its'lower end to its upper end to straddle theeye bolt, said lever being providedintermediate the ends thereof with an offset producing an. angular shoulder constituting the fulcrum for the lever, and a tightening nut on the eye bolt.

2. A plow fastener comprising in combination with a U-shaped standard and an eye bolt pivotally connected therewith, a heel bolt having a head at one end and notches adjacent to the other end, a lever member having prongs at its lower end to engage the notched heel bolt and prongs at its upper end to straddle the eye bolt, said lever being provided intermediate the ends thereof with an offset producing an angular shoulder constituting the fulcrum for the lever, a tightening nut on the eye bolt, and a tubular washer on the eye bolt fitted between the prongs of the lever and having a flange engaging the rearward edges of said prongs.

3. A plow fastener comprising in combi-,

nation with a Ushapod standard and an eye bolt pivotally connected therewith, a heel bolt having a head at one end and notches adjacent to the other end, a lever member having prongs at its lower end tov engage the notched heel bolt and prongs at its upper end to straddle the eye bolt, said lever being provided intermediate the ends thereof with an offset producing an angular shoulder constituting the fulcrum for the lever, and a tightening nut on the eye bolt; said nut having a tubular sleeve surrounding the bolt between the prongs of the lever and an annular flange directly engaging the rearward faces of said prongs.

In testimony whereof I afliX my signature.

his PLEASANT M. X WESTBROOKS.

, 7 mark Witnesses: V

A. M. WELLs, VM. H. CRUMP.

Copies of this patent may be obtained forfive cents each, by addressing the Commissioner of Patents, 7

' Washington, D. G. 

